def testAcceptPropositionEnergyIncrease(self):
agent = MonteCarloAgent(beta=1.0)
Enew = 1.0
Eold = 0.0
p = exp(-1.0 * (Enew - Eold))
naccept = 0
ntotal = 100000
for i in xrange(ntotal):
naccept += int(agent.acceptProposition(Eold, Enew))
q = float(naccept)/float(ntotal)
self.assertAlmostEqual(q, p, delta = 1e-2)
def testAcceptPropositionEnergyDecrease(self):
agent = MonteCarloAgent()
self.assertTrue(agent.acceptProposition(0.0, -1.0))
